89% knows the answer to this question: "If 40% of men retire by the age of 55, how many are still working at age 56 or older? "

And do you know the answer to this one? "Is this equation 495 + 156 + 21 = 660, true, false or open?"

95% knows the answer to this question: "A "sparkling" wine is generally characterized by what? "

And do you know the answer to this one? "Mixing meat, onions and mushrooms in a sour cream sauce reminds us of what Russian count?"

39% knows the answer to this question: "The song 'Do Re Mi' is from which movie? "

And do you know the answer to this one? "What song starts "Get your motor runnin' "?"

62% knows the answer to this question: "What singer/dancer insured both his legs (for $75,000) and both his arms (for $20,000)? "

And do you know the answer to this one? "How many lungs does the average mammal have?"

50% knows the answer to this question: "Who sang the famous song "Mamma Mia" (1975) ? "

And do you know the answer to this one? "Who sang the famous song "Knocking On Heaven's Door" (1973) ?"

58% knows the answer to this question: "With a diet of over 99% bamboo, what bear is native to south central China? "

And do you know the answer to this one? "Where would crow's feet land on your body, especially as you age?"

93% knows the answer to this question: "Assessed for insurance purposes at $100 million on December 14, 1962, what does Guinness call the world's most valuable painting? "

And do you know the answer to this one? "When "Bewitched" debuted on television in 1964, what was special about Samantha?"

94% knows the answer to this question: "During which civil war did the 'Battle of Milliken's Bend' take place? "

And do you know the answer to this one? "What caviar-producing fish was once so abundant in the Hudson River that it was called Albany beef?"

69% knows the answer to this question: "What creme-filled cookie did Nabisco introduce in 1912? "

And do you know the answer to this one? "In the 1600s, Peter the Great, who hated Moscow, moved the capital to what city, only for the Communists to move it back?"

81% knows the answer to this question: "Which tractor brand has a green and yellow logo? "

And do you know the answer to this one? "15 children get a sweet from the jar. There are 2 left. How many sweets were in the jar to start with?"

47% knows the answer to this question: "On what island did reggae supersede calypso in the 1970s, despite its radically political and religious Rastafarian connections? "

And do you know the answer to this one? "What Spanish-speaking nation got its name from its position on the Equator?"

46% knows the answer to this question: "Which historical figure was the founder of the Republic of Turkey? "

And do you know the answer to this one? "In 2012, Enrique Pena Nieto led the PRI back to power in what country, which it had run for decades, after a 12-year-absence?"